Hyperfox
Hyperfox is a security tool for proxying and recording HTTP and HTTPs
communications on a LAN.
Hyperfox is capable of forging SSL certificates on the fly if you provide it
with a root CA certificate and its corresponding key. If the target machine
recognizes the root CA as trusted, then HTTPs traffic can be successfully
decrypted, intercepted and recorded.
This is the development repository, check out the https://hyperfox.org
site for usage information.
Get hyperfox
You can install hyperfox to /usr/local/bin with the following command (requires
admin privileges):
curl -sL 'https://raw.githubusercontent.com/malfunkt/hyperfox/master/install.sh', sh
You can also grab the latest release from our releases
page and install it manually into
another location.
Build it yourself
In order to build hyperfox you'll need Go and a C compiler:
go install github.com/malfunkt/hyperfox
Running hyperfox and arpfox on Linux
The following example assumes that Hyperfox is installed on a Linux box (host)
on which you have root access or sudo privileges and that the target machine is
connected on the same LAN as the host.
We are going to use the arpfox tool to alter the ARP table of the target
machine in order to make it redirect its traffic to Hyperfox instead of to the
legitimate LAN gateway. This is an ancient technique known as ARP
spoofing.
First, identify both the local IP of the legitimate gateway and its matching
network interface.
sudo route
# Kernel IP routing table
# Destination Gateway Genmask Flags Metric Ref Use Iface
# default 10.0.0.1 0.0.0.0 UG 1024 0 0 wlan0
# ...
The interface in our example is called wlan0 and the interface's gateway is
10.0.0.1.
export HYPERFOX_GW=10.0.0.1
export HYPERFOX_IFACE=wlan0
Then identify the IP address of the target, let's suppose it is 10.0.0.143.
export HYPERFOX_TARGET=10.0.0.143
Enable IP forwarding on the host for it to act (temporarily) as a common
router.
sudo sysctl -w net.ipv4.ip_forward=1
Issue an iptables rule on the host to instruct it to redirect all traffic
that goes to port 80 (commonly HTTP) to a local port where Hyperfox is
listening to (1080).
sudo iptables -A PREROUTING -t nat -i $HYPERFOX_IFACE -p tcp --destination-port 80 -j REDIRECT --to-port 1080
We're almost ready, prepare Hyperfox to receive plain HTTP traffic:
hyperfox
# ...
# 2014/12/31 07:53:29 Listening for incoming HTTP client requests on 0.0.0.0:1080.
Finally, run arpfox to alter the target's ARP table so it starts sending its
network traffic to the host box:
sudo arpfox -i $HYPERFOX_IFACE -t $HYPERFOX_TARGET $HYPERFOX_GW
and watch the live traffic coming in.
Contributing to Hyperfox
Sure, there's a lot of opportunity. Choose an issue, fix it and send a
pull request.
License
Copyright (c) 2012-today José Carlos Nieto, https://menteslibres.net/xiam
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.